Iron Maiden · The Number of the Beast

Hallowed Be Thy Name

Hallowed Be Thy Name is in A minor at 104.7 beats per minute.

Tempo

105 BPM · Andantemedian of 172 analyses · 104.5–104.8 across the middle eight tenths

Key: A minorno sharps and no flats · the key most of the analyses agreed on
Agreement: 99%share of analyses that agreed
Analyses: 172people who ran the extractor
One beat: 573.1milliseconds, 60,000 ÷ BPM
Tuning: 438.5Hz · -6 cents from A 440
Dynamics: 2.08dB the level wanders from its average
Loudness: 0.914Essentia's 0–1 scale, not dB
Danceability: 1.246Essentia's danceability, 0–3

Source: AcousticBrainz, dump of 2022-06-23 (CC0) · MusicBrainz core data, 2026-09-17 (CC0) · how each number is measured. Measured up to 23.06.2022 — AcousticBrainz stopped collecting in 2022, so nothing released after that date is here.

What the numbers say

172 independent analyses of this recording were submitted to AcousticBrainz. All but a handful of them — 99% — put it in A minor, a key signature of no sharps and no flats. The tempo printed above is the median of the 172 readings; 99% of them land within 2% of it, and they barely differ at all.

At 104.7 BPM one beat lasts 573.1 milliseconds, so a sixteenth note is 143.3 ms and a dotted eighth 429.8 ms — the delay times for this recording. Counted half as fast it is 52.4 BPM, counted twice as fast 209.4. A score would mark that Andante, by the ranges this site uses.

The analyses put the reference pitch of the recording at 438.5 Hz, which is 6 cents below concert A at 440 Hz — the sort of drift a tape machine or a slightly different mastering leaves behind. That is a fact about this transfer of the music, not about how it was played.

The dynamic complexity of the recording measures 2.08 dB: that is how far the level wanders from its own average, so a small number means a loud, flat master and a large one means a recording that still breathes. Its average loudness is 0.914 on Essentia's 0-to-1 scale, which is not decibels and is not comparable to a streaming service's number.

10 other recordings here are in A minor; the ones listed below are the closest in tempo.

Beats per bar are not in this dataset. AcousticBrainz's analysis reports a tempo, a key and a loudness, and no time signature at all, so this page does not print one — a 4/4 here would be a guess dressed as a measurement.

Keys that fit with A minor

Each of these differs from A minor by at most one accidental, or shares its tonic. That is the whole of what a mixing wheel encodes; here the relations are named instead of numbered.

Delay times at 105 BPM

Note value	Beats	Milliseconds	Hertz
Whole note	4	2292.3	0.44
Half note	2	1146.1	0.87
Dotted quarter	1.5	859.6	1.16
Quarter note (one beat)	1	573.1	1.75
Quarter triplet	0.667	382	2.62
Dotted eighth	0.75	429.8	2.33
Eighth note	0.5	286.5	3.49
Eighth triplet	0.333	191	5.24
Dotted sixteenth	0.375	214.9	4.65
Sixteenth note	0.25	143.3	6.98
Sixteenth triplet	0.167	95.5	10.47
Thirty-second note	0.125	71.6	13.96

Half time 52.4 BPM · double time 209.4 BPM. Every row is one beat (573.1 ms) times the fraction in the second column.

Closest in key and tempo

Recordings in A minor, ordered by how near their tempo is to 105 BPM. A calculation, not a recommendation.

All songs in A minor All songs at 105 BPM A minor at 100–109 BPM Iron Maiden

MusicBrainz collapses 135 recording ids into this one. Recording id 89099344-431c-4c00-b3b0-0eaac70a138a.